CN212687691U

CN212687691U - MBR membrane bioreactor

Info

Publication number: CN212687691U
Application number: CN202021492184.5U
Authority: CN
Inventors: 张学东; 望雅君; 李东
Original assignee: Hubei Jinshunxiang Environmental Protection Co ltd
Current assignee: Dachu Environmental Protection Hubei Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-12
Anticipated expiration: 2030-07-24

Abstract

The utility model provides a MBR membrane bioreactor, including the reactor box that is provided with the water inlet, be provided with a plurality of MBR membrane group and collecting pipe in the reactor box, the product water of MBR membrane group collects in the collecting pipe, collecting pipe and outlet pipe intercommunication, be provided with the suction pump on the outlet pipe, reactor bottom half is provided with the aeration pipe, the aeration pipe passes through the gas-supply pipe and is connected with the fan, be provided with first switch on the gas-supply pipe, first switch with the intercommunication has the gas transmission bleeder on the gas-supply pipe between the fan, be provided with the second switch on the gas transmission bleeder, be provided with the third switch on the outlet pipe, the other end of gas transmission bleeder with the third switch with outlet pipe intercommunication between the collecting pipe. The utility model discloses the difficult jam in surface of MBR membrane group, the product water gauge height.

Description

MBR membrane bioreactor

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an MBR (membrane bioreactor).

Background

The conventional MBR membrane bioreactor generally adopts an aeration mode to wash for preventing the surface of an MBR membrane group from being blocked, but the mode not only can consume a large amount of electric energy, but also has an unsatisfactory washing effect, and the surface of the MBR membrane group is not thoroughly cleaned, so that the water yield is low.

SUMMERY OF THE UTILITY MODEL

To the deficiency that exists among the prior art, the utility model provides a MBR membrane bioreactor, it has solved the surface clearance of the MBR membrane group that exists among the prior art and has got incomplete, leads to the problem that the water yield is low.

According to the embodiment of the utility model, the MBR membrane bioreactor comprises a reactor box body provided with a water inlet, a plurality of MBR membrane groups and water collecting pipes are arranged in the reactor box body, the produced water of the MBR membrane groups is collected to the water collecting pipes, the water collecting pipes are communicated with a water outlet pipe, a suction pump is arranged on the water outlet pipe, an aeration pipe is arranged at the bottom of the reactor box body and is connected with a fan through a gas conveying pipe,

the air pipe is provided with a first switch, the first switch is communicated with an air delivery branch pipe on the air pipe between the fans, a second switch is arranged on the air delivery branch pipe, a third switch is arranged on the water outlet pipe, and the other end of the air delivery branch pipe is communicated with the third switch and the water outlet pipe between the water collecting pipes.

Compared with the prior art, the utility model discloses following beneficial effect has:

the surface of the MBR membrane group is not easy to block, and the water yield is high. Through increasing gas transmission bleeder and first switch, second switch and the third switch that sets up, regularly close first switch and third switch, open the second switch, make high-pressure gas get into gas transmission bleeder then flow into in the MBR membrane group for water and gas reverse flow in MBR membrane bioreactor, thereby solve the problem of the surface blockage of MBR membrane group, improve the water yield.

The controller is electrically connected with the first switch, the second switch and the third switch.

The automatic control of the switch is realized.

Further, a timer is arranged in the controller, the timer enables the first switch and the third switch to be opened and the second switch to be closed through the controller at a first time threshold, and the timer enables the first switch and the third switch to be closed and the second switch to be opened through the controller at a second time threshold.

The MBR module is cleaned reversely at regular time.

Further, the bottom of the reactor box body is provided with a conical hopper, the conical hopper is connected with a sludge pipe, and a sludge pump is arranged on the sludge pipe.

Further, two water collecting pipes are arranged in the reactor box body: go up water collecting pipe and water collecting pipe down, it connects to go up water collecting pipe the MBR membrane group upper end, water collecting pipe connection is in down the MBR membrane group lower extreme, go up water collecting pipe and water collecting pipe down all with the outlet pipe intercommunication.

An upper water collecting pipe and a lower water collecting pipe are respectively arranged at two ends of the MBR membrane group, water is produced towards the two ends of the MBR membrane group, and the water yield is higher.

Drawings

FIG. 1 is a schematic structural diagram of an MBR membrane bioreactor according to an embodiment of the present invention.

In the above drawings: 1. a reactor box; 2. MBR membrane group; 3. an aeration pipe; 4. a water inlet; 5. a lower water collecting pipe; 6. an upper water collecting pipe; 7. a water outlet pipe; 8. a gas delivery pipe; 9. a conical hopper; 10. a sludge pipe; 11. a sludge pump; 12. a first switch; 13. a second switch; 14. a third switch; 15. a suction pump; 16. a gas delivery branch pipe; 17. a controller; 18. a fan.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in figure 1, MBR membrane bioreactor, 1 upper portion opening of reactor box, the left side sets up water inlet 4, has a plurality of MBR membrane group 2 in the reactor box 1, goes up water collecting pipe 6 and connects in MBR membrane group 2 upper ends, and water collecting pipe 5 is connected at MBR membrane group 2 lower extreme down, goes up water collecting pipe 6 and water collecting pipe 5 down and all communicates with outlet pipe 7. The produced water of the MBR membrane group 2 is collected to an upper water collecting pipe 6 and a lower water collecting pipe 5 and then flows out from a water outlet pipe 7. A suction pump 15 is provided on the outlet pipe 7 to reduce the air pressure in the upper and lower headers 6 and 5 to improve the water yield. The bottom of the reactor box body 1 is provided with an aeration pipe 3, the aeration pipe 3 is connected with a fan 18 through a gas pipe 8, and bubbles exploded from the aeration pipe 3 scour the surface of the MBR membrane group 2. The air delivery pipe 8 is provided with a first switch 12, an air delivery branch pipe 16 is communicated with the air delivery pipe 8 between the first switch 12 and the fan 18, a second switch 13 is arranged on the air delivery branch pipe 16, a third switch 14 is arranged on the water outlet pipe 7, and the other end of the air delivery branch pipe 16 is communicated with the water outlet pipe 7 between the third switch 14 and the water collecting pipe.

Further, the device further comprises a controller 17, the first switch 12, the second switch 13 and the third switch 14 are all electromagnetic switches, and the controller 17 is electrically connected with the first switch 12, the second switch 13 and the third switch 14.

Further, a timer is arranged in the controller 17, and the timer turns on the first switch 12 and the third switch 14 and turns off the second switch 13 through the controller 17 at a first time threshold value, so that normal water production is realized. The timer closes the first switch 12 and the third switch 14 and opens the second switch 13 at a second time threshold value through the controller 17, so that produced water and gas are poured into the MBR membrane group 2, and the function of reversely cleaning the MBR membrane group 2 is achieved.

Further, the bottom of the reactor box body 1 is provided with a conical hopper 9, the conical hopper 9 is connected with a sludge pipe 10, and a sludge pump 11 is arranged on the sludge pipe 10.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

The MBR membrane bioreactor comprises a reactor box body (1) provided with a water inlet (4), wherein a plurality of MBR membrane groups (2) and water collecting pipes are arranged in the reactor box body (1), the produced water of the MBR membrane groups (2) is collected to the water collecting pipes, the water collecting pipes are communicated with a water outlet pipe (7), a suction pump (15) is arranged on the water outlet pipe (7), an aeration pipe (3) is arranged at the bottom of the reactor box body (1), and the aeration pipe (3) is connected with a fan (18) through a gas pipe (8);

be provided with first switch (12) on gas-supply pipe (8), first switch (12) with intercommunication has gas transmission bleeder (16) on gas-supply pipe (8) between fan (18), be provided with second switch (13) on gas transmission bleeder (16), be provided with third switch (14) on outlet pipe (7), the other end of gas transmission bleeder (16) with third switch (14) with outlet pipe (7) intercommunication between the collector pipe.
2. The MBR membrane bioreactor of claim 1, further comprising a controller (17), wherein the first switch (12), the second switch (13), and the third switch (14) are all electromagnetic switches, and wherein the controller (17) is electrically connected to each of the first switch (12), the second switch (13), and the third switch (14).
3. The MBR membrane bioreactor according to claim 2, wherein a timer is provided within the controller (17), the timer causing the first switch (12) and the third switch (14) to be open and the second switch (13) to be closed by the controller (17) at a first time threshold, the timer causing the first switch (12) and the third switch (14) to be closed and the second switch (13) to be open by the controller (17) at a second time threshold.
4. The MBR membrane bioreactor according to claim 3, wherein the bottom of the reactor box (1) is provided with a conical hopper (9), the conical hopper (9) is connected with a sludge pipe (10), and a sludge pump (11) is arranged on the sludge pipe (10).
5. The MBR membrane bioreactor according to claim 4, characterized in that two water collection pipes are arranged in the reactor tank (1): go up water-collecting pipe (6) and lower water-collecting pipe (5), go up water-collecting pipe (6) and connect MBR membrane group (2) upper end, water-collecting pipe (5) are connected down MBR membrane group (2) lower extreme, go up water-collecting pipe (6) and lower water-collecting pipe (5) all with outlet pipe (7) intercommunication.